Set:
Oath of the Gatewatch
Type:
Artifact — Equipment
Rarity:
Rare
Cost:
{1}
Equipped creature gets +1/+1 for each other creature you control that shares a creature type with it.
Equip {2}
The nomadic kor carry only necessities on their long treks. The coming of the Eldrazi redefined "necessities."

Set:
Guilds of Ravnica
Type:
Enchantment
Rarity:
Rare
Cost:
{3}{R}
You may look at the top card of your library any time.
You may play the top card of your library.
You can't play cards from your hand.
{3}{R}: Destroy Experimental Frenzy.
Turns out coffee is the weird aunt of invention.

Set:
Guilds of Ravnica
Type:
Instant
Rarity:
Rare
Cost:
{2}{R}
Target opponent may have Risk Factor deal 4 damage to them. If that player doesn't, you draw three cards.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Set:
Guilds of Ravnica
Type:
Land — Swamp Forest
Rarity:
Rare
Cost:
({T}: Add {B} or {G}.)
As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, Overgrown Tomb enters the battlefield tapped.
Cradle of the Golgari's new kingdom. Grave of those who wronged its queen.

Set:
Guilds of Ravnica
Type:
Legendary Planeswalker — Vraska
Rarity:
Mythic
Cost:
{2}{B}{G}
+2: You may sacrifice another permanent. If you do, you gain 1 life and draw a card.
-3: Destroy target nonland permanent with converted mana cost 3 or less.
-9: You get an emblem with "Whenever a creature you control deals combat damage to a player, that player loses the game."